N3DS on Ver. 10.1.0-27U should I update to 10.3 or just downgrade from 10.1? I have homemenuhax setup (w/ custom theme) and ironhax.
EDIT : Also are you forced to format SD? All my games were acquired through the eShop and I would like to keep my saves (mainly 700hrs on MH4U).
I believe people said that no, you keep all of your stuff when you downgrade. Making a backup of your stuff cant hurt though...